Fatal: master: service(imap): child 1288 killed with signal 6

[Aki Tuomi]

Please see instructions here on how to send gdb bt full

https://www.dovecot.org/bugreport-mail/

Aki

> On 25/11/2021 18:15 fugee ohu <fugee279 at gmail.com> wrote:
> 
>  
> Nov 25 11:14:21 mail dovecot: master: Dovecot v2.3.7.2 (3c910f64b)
> starting up for imap, lmtp, sieve, pop3, submission (core dumps
> disabled)
> Nov 25 11:14:27 mail dovecot: imap-login: Login: user=<hidden>,
> method=PLAIN, rip=71.190.227.103, lip=45.79.79.188, mpid=8457, TLS,
> session=<D6zMRJ/RZL1HvuNn>
> Nov 25 11:14:34 mail dovecot: imap-login: Disconnected (no auth
> attempts in 1 secs): user=<>, rip=71.190.227.103, lip=45.79.79.188,
> TLS handshaking: SSL_accept() failed: error:14094416:SSL
> routines:ssl3_read_bytes:sslv3 alert certificate unknown: SSL alert
> number 46, session=<H4QtRZ/REodHvuNn>
> Nov 25 11:14:34 mail dovecot: imap-login: Disconnected (no auth
> attempts in 0 secs): user=<>, rip=71.190.227.103, lip=45.79.79.188,
> TLS handshaking: SSL_accept() failed: error:14094416:SSL
> routines:ssl3_read_bytes:sslv3 alert certificate unknown: SSL alert
> number 46, session=<lQwyRZ/RE4dHvuNn>
> 
> On Thu, Nov 25, 2021 at 3:30 AM Aki Tuomi <aki.tuomi at open-xchange.com> wrote:
> >
> > Can you provide also the line before it? Core dump would not hurt either.
> >
> > Aki
> >
> > > On 25/11/2021 09:00 fugee ohu <fugee279 at gmail.com> wrote:
> > >
> > >
> > > This error appears in mail.log repeatedly after dovecot startup Notice
> > > the 777 mode for service auth I set that myself
> > > # doveconf -n
> > > # 2.3.7.2 (3c910f64b): /etc/dovecot/dovecot.conf
> > > # Pigeonhole version 0.5.7.2 ()
> > > # OS: Linux 5.14.17-x86_64-linode150 x86_64 Ubuntu 20.04.3 LTS
> > > # Hostname: mail.servicemouse.com
> > > auth_verbose = yes
> > > mail_privileged_group = mail
> > > managesieve_notify_capability = mailto
> > > managesieve_sieve_capability = fileinto reject envelope
> > > encoded-character vacation subaddress comparator-i;ascii-numeric
> > > relational regex imap4flags copy include variables body enotify
> > > environment mailbox date index ihave duplicate mime foreverypart
> > > extracttext
> > > namespace inbox {
> > >   inbox = yes
> > >   location =
> > >   mailbox Drafts {
> > >     special_use = \Drafts
> > >   }
> > >   mailbox Junk {
> > >     special_use = \Junk
> > >   }
> > >   mailbox Sent {
> > >     special_use = \Sent
> > >   }
> > >   mailbox "Sent Messages" {
> > >     special_use = \Sent
> > >   }
> > >   mailbox Trash {
> > >     special_use = \Trash
> > >   }
> > >   prefix =
> > > }
> > > passdb {
> > >   driver = pam
> > > }
> > > plugin {
> > >   sieve = file:~/sieve;active=~/.dovecot.sieve
> > > }
> > > protocols = " imap lmtp sieve pop3 submission"
> > > service auth {
> > >   unix_listener /var/spool/postfix/private/auth {
> > >     group = postfix
> > >     mode = 0777
> > >     user = postfix
> > >   }
> > > }
> > > ssl_cert = </etc/letsencrypt/live/mail.servicemouse.com/fullchain.pem
> > > ssl_client_ca_dir = /etc/letsencrypt/live/mail.servicemouse.com
> > > ssl_dh = # hidden, use -P to show it
> > > ssl_key = # hidden, use -P to show it
> > > submission_relay_host = 127.0.0.1
> > > submission_relay_ssl = starttls
> > > submission_relay_trusted = yes
> > > userdb {
> > >   driver = passwd
> > > }